Process and apparatus for coking the discharged material from lowtemperature distillation apparatus



1 FROM LOW July 3, 1923.

G THE DISCHARGED MATERTAT TEMPERATURE DIS TION APPARATUS TIL-LA Fi led Dec. 1921 'Enwknn or LONDON, ENGLAND.

PROCESS AND APPARATUS mates-Isa {run mscnanenn MATERIAL more no V 'rEMrEnATuBn DISTILLATION' AR'PALRATUS.

Application filed December 22, 1921 Serial No. 524,155.

To all whomit'may concem:

Be it known that I, EnwAnn Burns, a sub ject of the Kin of England, residing in London, Englan ,have invented certain new and useful Improvements in a Process and Apparatus for Coking the Discharged Material from Low-Temperature Distillation Apparatus, of which the following-is a specification.

This invention is for improvements in or relating to retorts or retorting-means for distilling or coking coal or both and has particular reference to the coking'of coal discharged from a low temperature distillation apparatus. I

According to this-invention there is provided an apparatus for coking fuel and for the production of gas, a tubular retort in the form of a conduit through which fuel can be 'fed continuously, and one or more heatingjackets surrounding the conduit, in COIIlbl nation with one or more gas-withdrawing jackets that surround and open each through a plurality of ports into the interior of the conduit, which gas-withdrawing jackets preferably alternate with the heatingjackets.

When the apparatusas just described above is used with briquettes formed from material discharged from a low-temperature distillation apparatus, the said conduit may be of such a shape and size in cross-section that the briquettes fed through it make a sliding fit with and fill or substantially fill the cross-section of the conduit.

Conveniently, the pa ts of the coking apparatus set forth above are combined with a distillation-retort for partially distilling fuel, the material discharged from which is automatically fed to the tubular retort by way of a closed chamber.

In the accompanyin drawings which illustrate diagrammaticaly one, method of carrying out the invention- Figure 1' is a central longitudinal section through the delivery-conduit at the point where coking occurs, the material being shown as fed through the conduit in the form of briquettes, and

Figure 2 is a general-plan of the apparatus.

Like reference letters indicate like parts throu hout the drawings.

Rerring, to the drawing, a tubular retort A in the form of a conduit is upwardly inclined, as shown in Fi re 1, either throughout the whole of its engthor at one end, so that the briquettes maybe fed in at thelevel of discharge from distillation apparatus and delivered at a point su iiicientl,

elevated to fall into a wagon. In Figure 9 the distillation apparatusis indicated at B and may be similar in construction to that described in my concurrent United States a patent specificationSerial No. 523,456.

' The distilled material is discharged automatically by any convenient means into a chamber B whence it is fed by a conveyor into the briquetting apparatus C. This apparatus may be of any convenient construction wherein material to be briquetted is fed 7 from a hopper and masses of it are rammed into a delivery-conduit, a separator being fed between eacli two adjacent masses durmg the ramming operation. In the drawing a ram at the bottom of a hopper is shown at C and the conduit A is that into which briquettes C separated by separators C are rammed. At a convenient point along the conduit A two heating-jackets Ev are proyided and two gas-receiving jackets F. The ackets areplaced Sldu by side, the heatingjackets alternating with the gas-receiving jackets. The conduit A is provided with perforations A at the points where it is surrounded by the gas-receiving jackets, and thus gas generated by the briquettes'passing through the heated zones of the jackets E can be drawn off by the gas-receiving fluid) through the jackets E, and conduits I F connect the gas-receiving jackets to permitthe withdrawal of the gas therefrom.

It willbe seen that this apparatus can be worked as a closed system, the coal being fed into the retort B by the hopper B made to traverse the retort by mechanical means, such as are described in my earlier United States patent specification Serial No. 523,456 already referred to. discharged automath cally say into the chamber B and raised thence by a conveyor to the hopper of the briquetting apparatus C. By this means itis delivered at the proper temperature into the briquetting apparatus and rammed into the delivery-conduit A so that it is formed into briquettes which are afterwards coked by passing through the areas surrounded by the jackets E. Coal. is thus vfe '1 iIi 'a t one end of theiapparatus and ke briquettes delivered from the other.

The conveyor, which may be disposed in the chamber B ,-'-co-nstitute's -nopart per se' sired to form it into briquettes as" it leaves the retort. 1 I

It .will be appreciated that any number of heating-jackets and gas-withdrawingjackets may be provided. j

1 If it'is' desired to effect distillation by the retort illustrated in Figure 1, it is only necessary to provide the gases or other heatingmedium at the requisite temperature, say,

for low temperature distillation, and if coking is required subsequently a second series of heating and gas-collecting jackets could be arranged round the conduit at a further point along the same and supplied with a heating-medium at a higher temperature.

That is to say, the set of heating-and gaswithdrawing jackets shown in F igure 1 may be duplicated, the heating medium supplied to the setthrough Which the fuel-first passes being ata lower temperature'than that of the heating medium supplied to thesecond set. gasreceiving jackets may be used and the conduit may be, of any desired diameter,-

and when serving as aretort, say, for low temperature distillation, it could be arranged vertically, the coal being fed in at the top and controlled in its escape at the bottom so that a shall be held within the cation with the interior of said conduit, and.

gas-withdrawing jacket.

heated zone until therequisite degree of distillation has taken place.

What I claim as my invention "and. desire:

to secure by Letters Patent is '1. In apparatus for coking'fueland for the production of gas, the combination with a tubular retort in the form of a conduit through which fuel can be fedcontinuously,

at least one heating jacket surrounding a portion of said conduit, and means for supplying a heating medium to the heating jacket, of at least one gas-withdrawing jacket that surrounds another portion ofsaid conduit, which latter portion has in its wall a plurality of'ports that put the gas-withdrawing jacket into open communimeans for conducting gas away from the 2. In apparatus for'coking fuel and for the production of gas, the combination of withdrawing jackets.

Any number of heating-jackets andf 'a tubular 'retort'in the form of a conduit through which fuel can be fed continuously, and having imperforate and ported 1 portions, a plurality of heating jackets surrounding each an iinperforate portion of said conduit,.means for supplying a'heating medium tothe heating jackets, a plurality of gas-withdrawing jackets surrounding each a ported portion of'said'conduit,

which gas-withdrawing jackets falternate with .the vsaid heating jackets, and meansfor conducting gas away from the gas- 3. 1n apparatus for coking-fuel and.v for the production of gas, the combination of a tubular retort having a ported and an imperforate'portion and being in the form of a conduit through which fuel in the form of briquettes can be fed Icontinu'ously which conduit is of such a'shape and size in cross-section that thesaid briquettes fed;

through it make-a sliding fit with and sub stantially fill the cross-section of the conduit, at least oneheating jacket surround ing an imperforate portion ofsaid conduit,

means for supplyinga heating,medium to the heating jacket,.-at least one ga's-with- ,d rawing jacket surrounding a ported portion of said conduit, and means for conducting gas away from the said gas-withdrawing jacket. I

4. The combination of a tubular-retort in the form of a conduit having ported and; imperforate portions, .briquetting. apparatus for briquetting fuel and continuously feeding-the briquettes through said" conduit, each two adjacent briquettes being separated by a separator,-jwhi.ch conduit-is of such a shape' and sizein cross-section that, the said briquettes fed through it make a sliding fit with and substantially fillthe cross-section of the conduit, a plu-' rality of, heating jackets surroundingjea'ch an imperforated portion of said conduit, means for supplying a heating medium tothe heating jackets, aplurality of gas-withf drawing jackets surrounding each a ported .portion of said conduit, which gas-withdrawing jackets alternate with the said heat- ,ing' jackets, an'dlmeansjfor conducting gas away from gas-withdrawing jackets.

c A closedsys-tem coking-apparatus oomprising the combination witha tubular coking retort in :the' .form of a conduit having a ported and an imperforate portion, at

least one heating jacket surrounding an iniperforate portion of said conduit, means for supplying 'a heating medium to .the heating jacket, at least one gas-withdrawing jacket surrounding a porte'd portion of said 0on duit, and means forj conducting, gas away from the gas-Withdrawing jacket, of a lowtiallyfdistilling fuel,'a closed chamber connecting the latter retort withsaid coking temperaturefuel-distillation retort for par chamber the partially distilled fuel discharged from said low-temperature fuel-distillation retort.

6. A closed system coking-apparatus comprising the combination with-a tubular coking retort in the form of a conduit having a ported and an imperforate portion, at least one heating jacket surrounding an imperforate portion of said conduit, means for supplying a heating medium tothe heatingjacket, at least one gas-withdrawing jacket surrounding a ported portion of said'conduit, and means for conducting gas away from the gas-withdrawing jacket, of a low.- temperature fuel-distillation retort for partially distilling fuel, a closed chamber con-' necting the latter retort with said coking retort, briquetting apparatus connected with said closed chamber and arranged to feed briquettes continuously through said coking retort, and conveyor means for feeding to said briquetting apparatus by way of said closed chamber the partially distilled iuel discharged from said low-temperaturefueldistillation retort.

7. A closed system coking-apparatus comprising a tubular coking vretort having ported and imperforate portions, a plurality of heating jackets surrounding each an imperforate portion of said retort,- means for supplying a heatin medium to the heating jackets, a plurality of gas-withdrawing jackets surrounding each a ported portion of said retort, which gas-withdrawing jackets alternate with the said heating jackets, means for conducting J gas away from the said gas-withdrawing jackets, a low-temperature fuel-distillation retort for partially distilling fuel, a closed chamber connecting the latter retort with said coking retort, briquetting apparatus connected with saidclosed chamber and arranged to feed briquettes continuously through said coking retort, and conveyor means for feeding to said briquetting apparatus by, Way of said closed chamber the partially distilled fuel discharged from said low-temperature fueldistillation retort.

In testimony whereof I afiix my signature.

EDWARD BARR S. 

